package com.rom.ratethehell;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.os.AsyncTask;
import android.os.Build;
import android.os.Bundle;
import android.text.TextUtils;
import android.view.Menu;
import android.view.View;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;

import com.rom.ratethehell.protocol.RequestOrganizer;
import com.rom.ratethehell.protocol.tasks.SneakAPicTask;

/**
 * Activity which displays a Register screen to the user, offering registration as
 * well.
 */
public class RegisterActivity extends Activity {
	/**
	 * A dummy authentication store containing known user names and passwords.
	 * TODO: remove after connecting to a real authentication system.
	 */
	@SuppressWarnings("unused")
	private static final String[] DUMMY_CREDENTIALS = new String[] {
			"foo@example.com:hello", "bar@example.com:world" };

	/**
	 * The default email to populate the email field with.
	 */
	public static final String EXTRA_EMAIL = "com.example.android.authenticatordemo.extra.EMAIL";
	public static final String EXTRA_FIRST_NAME = "first";
	public static final String EXTRA_LAST_NAME = "last";
	public static final String EXTRA_PASSWORD = "password";
	public static final String EXTRA_GENDER = "male";
	/**
	 * Keep track of the Register task to ensure we can cancel it if requested.
	 */
	private UserRegisterTask mAuthTask = null;

	// Values for email and password at the time of the Register attempt.
	private String mEmail;
	private String mPassword;
	private String mFirstName;
	private String mLastName;
	private String mGender;
	private String mCountry;
	// UI references.
	private EditText mEmailView;
	private EditText mPasswordView;
	private EditText mFirstNameView;
	private EditText mLastNameView;
	private View mRegisterFormView;
	private View mRegisterStatusView;
	private TextView mRegisterStatusMessageView;

	

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_register);

		// Set up the Register form.
		mEmail = getIntent().getStringExtra(EXTRA_EMAIL);
		mEmailView = (EditText) findViewById(R.id.email);
		mEmailView.setText(mEmail);
		
		
		mPassword = getIntent().getStringExtra(EXTRA_PASSWORD);
		mPasswordView = (EditText) findViewById(R.id.password);
		mPasswordView.setText(mPassword);
		
		mFirstName = getIntent().getStringExtra(EXTRA_FIRST_NAME);
		mFirstNameView = (EditText) findViewById(R.id.firstName);
		mFirstNameView.setText(mFirstName);
		
		mLastName = getIntent().getStringExtra(EXTRA_LAST_NAME);
		mLastNameView = (EditText) findViewById(R.id.lastName);
		mLastNameView.setText(mLastName);		

		
		mRegisterFormView = findViewById(R.id.register_form);
		mRegisterStatusView = findViewById(R.id.register_status);
		mRegisterStatusMessageView = (TextView) findViewById(R.id.register_status_message);

		findViewById(R.id.sign_in_button).setOnClickListener(
				new View.OnClickListener() {
					@Override
					public void onClick(View view) {
						attemptRegister();
					}
				});
	}
		


	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		super.onCreateOptionsMenu(menu);
		getMenuInflater().inflate(R.menu.register, menu);
		return true;
	}

	/**
	 * Attempts to sign in or register the account specified by the Register form.
	 * If there are form errors (invalid email, missing fields, etc.), the
	 * errors are presented and no actual Register attempt is made.
	 */
	public void attemptRegister() {
		if (mAuthTask != null) {
			return;
		}

		// Reset errors.
		mEmailView.setError(null);
		mPasswordView.setError(null);

		// Store values at the time of the Register attempt.
		mEmail = mEmailView.getText().toString();
		mPassword = mPasswordView.getText().toString();
		mFirstName = mFirstNameView.getText().toString();
		mLastName = mLastNameView.getText().toString();
		Spinner gender = (Spinner) findViewById(R.id.gender);
		Spinner country = (Spinner) findViewById(R.id.countries);
		mGender = gender.getSelectedItem().toString();
		mCountry = country.getSelectedItem().toString();
		boolean cancel = false;
		View focusView = null;

		// Check for a valid password.
		if (TextUtils.isEmpty(mPassword)) {
			mPasswordView.setError(getString(R.string.error_field_required));
			focusView = mPasswordView;
			cancel = true;
		} else if (mPassword.length() < 4) {
			mPasswordView.setError(getString(R.string.error_invalid_password));
			focusView = mPasswordView;
			cancel = true;
		}

		// Check for a valid email address.
		if (TextUtils.isEmpty(mEmail)) {
			mEmailView.setError(getString(R.string.error_field_required));
			focusView = mEmailView;
			cancel = true;
		} else if (!mEmail.contains("@")) {
			mEmailView.setError(getString(R.string.error_invalid_email));
			focusView = mEmailView;
			cancel = true;
		}

		if (cancel) {
			// There was an error; don't attempt Register and focus the first
			// form field with an error.
			focusView.requestFocus();
		} else {
			// Show a progress spinner, and kick off a background task to
			// perform the user Register attempt.
			mRegisterStatusMessageView.setText(R.string.register_progress_signing_in);
			showProgress(true);
			mAuthTask = new UserRegisterTask(this);
			mAuthTask.execute((Void) null);
		}
	}

	/**
	 * Shows the progress UI and hides the Register form.
	 */
	@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
	private void showProgress(final boolean show) {
		// On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
		// for very easy animations. If available, use these APIs to fade-in
		// the progress spinner.
		if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
			int shortAnimTime = getResources().getInteger(
					android.R.integer.config_shortAnimTime);

			mRegisterStatusView.setVisibility(View.VISIBLE);
			mRegisterStatusView.animate().setDuration(shortAnimTime)
					.alpha(show ? 1 : 0)
					.setListener(new AnimatorListenerAdapter() {
						@Override
						public void onAnimationEnd(Animator animation) {
							mRegisterStatusView.setVisibility(show ? View.VISIBLE
									: View.GONE);
						}
					});

			mRegisterFormView.setVisibility(View.VISIBLE);
			mRegisterFormView.animate().setDuration(shortAnimTime)
					.alpha(show ? 0 : 1)
					.setListener(new AnimatorListenerAdapter() {
						@Override
						public void onAnimationEnd(Animator animation) {
							mRegisterFormView.setVisibility(show ? View.GONE
									: View.VISIBLE);
						}
					});
		} else {
			// The ViewPropertyAnimator APIs are not available, so simply show
			// and hide the relevant UI components.
			mRegisterStatusView.setVisibility(show ? View.VISIBLE : View.GONE);
			mRegisterFormView.setVisibility(show ? View.GONE : View.VISIBLE);
		}
	}

	/**
	 * Represents an asynchronous Register/registration task used to authenticate
	 * the user.
	 */
	public class UserRegisterTask extends SneakAPicTask<Long> {
		
		public UserRegisterTask(Context context) {
			super(context,false);

		}

		@Override
		protected void onCancelled() {
			mAuthTask = null;
			showProgress(false);
		}

		@Override
		protected void doTask() throws Exception {
			setResult(RequestOrganizer.getInstance().register(mEmail,mPassword,mFirstName+mLastName,mGender,mCountry));
		}

		@Override
		protected void onSuccess(Long result) {
			mAuthTask = null;
			showProgress(false);
			RegisterActivity.this.setResult(result==0 ? Activity.RESULT_OK : Activity.RESULT_CANCELED);
			if (result==0)
				finish();
			
		}

		@Override
		protected void onError(Exception e) {
			
		}
	}
}
